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Old 03-14-2006, 08:35 AM   #11 (permalink)
 
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For the Hagen Nutrafin Canister:

Sugar to the bottom inside line,
Water to the top inside line,
1/8-1/4 teaspoon yeast
1/4-1 teaspoon baking soda

Close as tight as possible and enjoy.

The placement of the hagen should be under good circulation as to spread the dissolved CO2 around, and maybe catch the escaping bubble. Not to worry about catching that bubble, since the bubble gets about 85-95% smaller as it travels the rungs, giving you very good dissolution.

-John N.
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Old 03-14-2006, 10:26 AM   #12 (permalink)
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John => Thanks & dah! I should have thought of blowing through it to make sure it faces the right direction. The picture is a nice help though too.

re. tubing, I was at a local aquarium club (LAC) talk a while back where the speaker recommended the silicone tubing over the clear vinyl (according to my notes), but I could not remember why so. SO thanks for the info on both kinds.

re. baking soda and limiting/controling the reaction, it does seem that many municipal water sources are hard enough. As I remember it, alcohol, which is produced by the fermentation process (that we are using to supply DIY CO2), is the more limiting/controlling factor. Affecting the constancy more and even killing the brew over time.
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Old 03-17-2006, 10:53 AM   #13 (permalink)
 
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Quote:
Originally Posted by upikabu
Hi John,

Thanks for the explanations. My KH is 5 out of the tap, so baking soda probably won't have much effect in my case. Mixing may not help either, as the sugar and yeast were already dissolved from the get-go.

What's the highest level of CO2 that you (or anyone else) were able to achieve with one 2L bottle of DIY CO2 in a 20g?

Cheers,
-Paulus
I have a 37 gal tank and a 2 litre bottle DIY system. I generate so much co2 that I have to run a bubbler at night to keep my fish from being aphixiated. However, the secret to getting a higher CO2 rate is in how well the bubbles are smashed up as they are released. The smaller and more numerous the bubble are the higher you co2 concentration will be. The goal is to reach about 30ppm of co2. I have no trouble reaching and exceeding that.
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Old 03-17-2006, 01:26 PM   #14 (permalink)
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Hi beaucon,

Can you share your diffusing method?

Thanks for the info!
Cheers
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Old 06-17-2006, 04:13 PM   #15 (permalink)
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On the Hagen Nutrafin ladder, I tilt the ladder to trap the bubbles. I figure, why waste them. If I could figure out how to get a nice looking (clear) cup like thing to go OVER the bubbler and trap them for good I would.

Then they would dissolve 100% - correct?

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Old 07-30-2006, 04:17 PM   #16 (permalink)
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Can you guys show a link to a nice CO2 Bell?
The link to the Glass Difussers is great. Good price too.

I think a Glass Diffuser with a CO2 Bell somewhere above it would look really cool!
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Old 08-02-2006, 02:27 AM   #17 (permalink)
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Hi john, how long the DIY mixture will last on the Nutrafin canister?
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Old 08-02-2006, 11:56 AM   #18 (permalink)
 
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For me using the above recipe in the nutrafin canister, it lasted for about 2-3 weeks. It probably could go longer, but I like to have it going at the peak performance.

Using a Juice or 2L bottle, the reaction and bubble count was longer at about 3-4 weeks.

-John N.
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Old 08-02-2006, 12:00 PM   #19 (permalink)
 
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Jimbo for the CO2 bell, it really can be anything that can create a dome where CO2 can fill in. Commonly used items would probably be small bottle soda tops adhered to a weight, glass sauce dishes, etc.

-John N.
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Old 08-03-2006, 08:59 AM   #20 (permalink)
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Yeah, I am tried those for a day. Ended up putting the Nutrafin Ladder back in for now. I do notice the size of the bubbles do get smaller before they finally escape from the top. Boy, watching your whole tank pearling is a trip!
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